Erythema melanosis follicularis on the face and neck

Introduction to facial and neck follicular erythema A special erythematous pigmentary disease of the facial hair follicle, which is characterized by follicular erythema pigmentation of the anterior and posterior and cerebral side of the hair follicle erythema erythema (face-neck follicularisofthefaceandneck). calm. basic knowledge The proportion of illness: 0.042%-0.058% Susceptible people: no special people Mode of infection: non-infectious complication:

The cause of follicular erythema melanosis in the face and neck

(1) Causes of the disease

The cause is unknown and there are no other relevant descriptions at present.

(two) pathogenesis

The pathogenesis is still unclear, and there are no other relevant descriptions at present.

Face and neck follicular erythema melanosis prevention

Early detection and early diagnosis and early treatment.

Facial and neck follicular erythema melanosis complications Complication

The disease belongs to a skin pigmentation abnormality disease, which is a benign lesion and generally does not induce other diseases. For patients with low physical constitution and long-term use of immunosuppressive agents, skin ulceration can be caused by scratching, and bacterial and fungal infections can be combined. In severe cases, patients with systemic sepsis can be induced, resulting in high fever, convulsions, and spirit. Symptoms such as wilting, palpitations, and chest tightness.

Symptoms of follicular erythema melanosis in the face and neck Common symptoms scaly telangiectasia papules gradually become rough

The disease is more common in young and middle-aged males. The ear is anterior and symmetrical in the neck with symmetrical pale brown pigmentation patches or spots, interspersed with follicular papules and squamous scales, and obvious telangiectasia at the lesion. Self-consciously itchy, the upper arms and shoulders often have pores of moss, the hairs fall off, and the hair and hair are less affected.

Examination of follicular erythema melanosis in the face and neck

Histopathology: epidermal hyperkeratosis, pigmentation is obvious, hair follicles are enlarged, especially in the funnel part, there are lamellar horny masses, sebaceous glands are hypertrophy, and lymphocytes infiltrate around.

Diagnosis and differentiation of facial and neck follicular erythema

diagnosis

According to the clinical manifestations, the characteristics of skin lesions and histopathological features can be diagnosed.

Differential diagnosis

1. Eyebrow scarlet erythema (ulerythema ophryagenes) is a persistent reticular erythema and small horny hair follicle papules, which have recessed scars and atrophic alopecia areata after regression, mainly invading the two eyebrows, but also involving adjacent skin or even the head. unit.

2. Perioral red pigment disease (drythrose pigmentaire peribuccale) (drythrose pigmentaire peribuccale) mainly in the mouth, with erythema and diffuse brown red or brownish yellow spots, sometimes can be extended to the ankle and the sides of the nose, bilaterally symmetric The edge is clear, and the damage near the lip red often has normal skin separated from it.

3. Civatte skin heterochromia is more common in the neck and upper chest. It is a symmetrical reticular pigmentation. The skin lesions are mostly reddish brown or bronze, and the needles or papules from the needle to the lentils are superficial. Atrophic white spots and telangiectasia.

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